package com.lqk.netty.dubborpc.netty;

import com.lqk.netty.dubborpc.provider.HelloServiceImpl;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;

public class NettyServerHandler extends ChannelInboundHandlerAdapter {
    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        System.out.println("server端channelRead被调用");
        // 获取客户端发送的消息，并调用服务
        System.out.println("msg="+msg);
        /*
            客户端在调用服务器的api时，我们需要定义一个协议
            比如我们要求 每次发消息时都必须以某个字符串开头 "HelloService#hello#xxx"
         */
        if (msg.toString().startsWith("HelloService#hello#")){
//            String result = new HelloServiceImpl().hello(msg.toString().split("#")[2]);
            String result = new HelloServiceImpl().hello(msg.toString().substring(msg.toString().lastIndexOf("#")) + 1);
            ctx.writeAndFlush(result);
        }
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        ctx.close();
    }
}
